Hardware amps

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  IMPORTANT NOTICE for BIAS Head and Rack owners about iPad compatibility
  • Mike

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  @mike thank you. If you like to do it the perfect way next time, please cross out the original post and post the all-clear over this section. This way the relations of the following posts are not broken!
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  Bias mini WiFi button OFF by default
  • journeymanmw

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  @felix said in Bias mini WiFi button OFF by default: @journeymanmw It's used for Bluetooth connection and will only stop when connected to an iOS device via Bluetooth. I'm sorry Felix, but you're not really answering the question... It's not about WiFi or bluetooth, it's about the anoying blinking. I asked myself the same. As I don't use bluetooth at all (because I don't have an iOS device), I have to turn off the blinking button each time I turn on the amp... But now, as I'm a little familiar with the PG support, I don't expect any further development of my amp...
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  Bias Head low output volume - WAY too quiet!
  • jegomez83

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  I spent a few hours trying to trouble shoot this, exploring the forums for solutions, and trying all the different outputs (balanced, unbalanced, and even headphones). But every single output from this Bias Head is extremely low (around -25dBu) Apparently this is a common problem. I’ve seen a few other people on the forum post that they have the same issue and the only response they get is someone from Positive Grid asking them to open up a support ticket. I’ve opened up a support ticket, but there has been no response. I’m about 5 minutes from sending this amp back. I had high hopes for it, but if it can’t even be played at a decent volume then it’s pretty much worthless.
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  Spark signal too quiet
  • ixzist

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  I have the same issue. Positive Grid needs a firmware updated or better yet, software editor with mixing capability.
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  Bias Amp Mini Guitar Signal Path for Effects Loop
  • positive

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  Thanks Crazypc for your reply. 4cm stands for 4 cable method. That means that the guitar goes into the GT-1000 then from a send channel into the BIAS Mini. I take the send from the amp to the return of the GT-1000. I can use the line out from the GT-1000 or feed the output into the return of the amp. It seems to me that all of the BIAS amp simulation occurs before the effects loop and that the return only hits the solid state power amp. I would hope that the effects loop occurred between the the pre and power simulation as you suggested but it doesn't seem to be the case. I don't have a speaker cab at the moment so I can't tell if the reverb is before or after the effects loop. Although I suspect it's before.
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  Major Problems getting started
  • afpdbobhaley

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  @tafkad thank you!
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  BIAS RACK / HEAD independent output volumes for Speaker Out, Line Out and Headphone
  • sebastian k

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  The thought to fit another device behind the Bias Rack cannot be reconciled with my ideas of how an all-in-one device should work. The Bias Rack is able to do and emulate everything. In my opinion it is not necessary to use a separate load box with box simulation. To help you out with the load problem: the load on an amp is only important if you use a real tube amp. The Bias AMPs (and other digital amps) do not need a specific load. Or a load at all. Only thing that changes is the efficiency (power) of the output in conclusion to the different resistance values. But please no short circuit on the power output connection ;)
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  Redeem Code Invalid
  • afpdbobhaley

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  Problem with spark amp
  • mobi4ever

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  @joryandrew I purchased the Spark amp because it shows Android support on their website, this is disappointing and misleading. They have the app for download on Google play. If they are not going to support Android then release an app for Windows, not everyone lives in the Apple universe.
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  This same problem. help (Tone loss when connecting directly to head with buffered bypass pedals)
  • tomek611

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  Bias Amp Mini powering on issues
  • davidzais

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  I have the same problem, i get the lastet versión update 2 weeks ago, 2 day ago i try to turn o. The amp, the red ligth turns on but the back and front panel are dead, and get overheath i get in contact with the official hardware service and tells me only need one mod and the update from the firmware on the front panel, the problem i got now it's i'm in México and it's so dificult to send a internarional shipping cost are to high, some one can share the diagram for the amp to send with my tech and check if he can make the repair, i hope some one can help me :(
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  How to record on a windows pc with spark amp?
  • mobi4ever

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  @mobi4ever You need to download the USB driver to have it work on your Win10 computer, here's the download link: https://help.positivegrid.com/hc/en-us/articles/360039598451-Spark-Windows-ASIO-Driver-
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  Sold my Bias mini. How to unregister the device.
  • Scot Michael

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  Sold mine too. Please unregister me My login is mocabe@hotmail.com
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  Stereo?
  • ivan_lechev

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  Bought a bias mini and need to unregister the current user
  • janwe2009

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  Difficulty saving patches by holding down the preset button
  • holymoly

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  @holymoly Please send us a request at https://help.positivegrid.com/hc/en-us/requests/new, we will follow this up! Thank you!
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  Spark has started shipping...to Japan.
  • diegofiorillo.uk

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  @corvusgrp Hi Corvus, I tend to agree, I have pre-ordered a Spark amp the other day where the order states I will get it in March, (edit: I notice the pre-order page now says March/April - so I guess I will get it by the end of April). I think for people like us who mention we are buying an amp should update this thread when we actually receive the amp... just so people get an idea that they do come - and that with so many thousands of amps to build obviously its going to take some time. But it would be really good for Positive Grid to feedback to us some general info on when orders have been filled. (like - Today we sent 100 amps to invoice numbers etc...etc...) Just as a statement of good will... Social media can make or break a company and so far we are making them a global phenomenon in the digital amp realm.... I might add that I ordered an amp after seeing the Trogley Guitars YouTube review of the Spark amp, and they look absolutely amazing - I love the fact that they have so many options, to the point I sold all my guitar pedals to be able to afford one... Nice work Positive Grid! YOU GUYS ROCK!!!! Personally I cant wait to get my hands on one of these and start posting my own YouTube reviews!
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  Input clipping with active basses
  • FruechteTony

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  Mini Guitar Line Out
  • desertdrifter7

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  Positive Grid Bias Head a dead Horse?
  • fatkey

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  A good question. I have the same feeling. In my oppinion the Rack / Head is the only realy suitable setup for a rock, metal and/or pop band live on stage. The features are great and the sound is realy good. But some updates and bugfixes would realy help to push this products. Maybe all of PG's capacitys were blocked by the spark development. But now they should have enogh money (from spark sales) and capacity to support the band and live equipment (Rack / Head and Mini). Maybe that is why musicans relay on the old tube amp technology. These amps are fully developed and last forever. Digital amps are dead and the money we spend is lost, if the supplyer ends the support (at a version which is not real final). I realy hope that PG will continue the support after the stress from spark development is gone. The products are worth it!